u 



Circular 100 



The following brief descriptions have been taken from Dr. 

 Britton's paper and will enable one to identify this species. 



EGG. The eggs are laid end to end in slits made along one of 

 the ridges at the edge of the needle. The eggs are pale blue in color, 

 smooth and slightly shining. The sides are parallel with the ends 

 rounded. Length, 1.25 mm. thickness, .33 mm. In the material ex- 

 amined the newly laid eggs were slightly separated in the slits. The 



Fig. 2 6. Orchid leaf showing injury by orchid plant bug 

 Fig. 2 7. An orchid plant bug, Tenthecoris bicolor Scott. 



eggs before hatching increase in size, becoming crowded in the slits 

 so that the ends are flattened like peas in a pod. 



LARVA. Length, 25 mm. (1 inch) to 28 mm. (1% inches). 

 Thickness, 4 mm. (5/32 inch). Head black, body greenish yellow 

 with a mid-dorsal double stripe of brown extending the entire length. 

 On either side of the dorsal stripe is a yellow stripe broken with trans- 

 verse markings of brown. The remainder of sides dark brown with 

 many irregular yellow or whitish spots. Ventral surface pale yellow 

 or white. Pro-legs yellow with a transverse black mark at base, true 

 legs marked with black and yellow. 



